Exam 1: The complete set of hereditary information carried by an organism is its genome Human DNA contains 20% C on a molar basis. What are the mole percents of A‚ G‚ and T? A- 30% G- 20% T- 30% In a polynucleotide‚ a phosphate group is linked to the 3’ and 5’ carbons 2 pentoses Which of the following is a transition mutation? A-T —> G-C - transition= purine —> purine or pyrimidine —> pyrimidine - Purines- GA - Pyrimidines- CT The basic building block of nucleic acids is the nucleotide
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Let re-learn some stuff and earn some points back. These are questions missed by most of you on the exam. You can only earn up to a maximum of 120 points total (your exam 1 score + what you earned here). One point per correctly answered question (20 points) 1. Oxidative phosphorylation requires all of the items listed below except a. ATP synthase in the correct position in the membrane. b. The flow of electrons from NADH to protein in the membrane. c. A matrix more positively charged
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A copy of this form must accompany all work submitted for marking (for work submitted by email it may be recreated as part of the file‚ with all of the information shown below to be included on the email version). Work will not be marked unless accompanied by a completed submission form. Thank you. Surname: First Name: Learner ID Number: Programme Teacher/Assessor: Assessment Title Unit Numbers: AUTHENTICATION DECLARATION This submission is my own work. I have made no use of printed
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Task 2‚ 1.2‚ Select 1 type of tissue from each column. For each of the three chosen tissues‚ explain the benefits of cells combining together to form tissues with the specific functions. Jane Watson Glandular epithelial tissue: Glandular epithelial cells make up any glands within the body. These include sebaceous glands of the skin and glands in the intestinal lining (exocrine glands)‚ and many of the endocrine glands releasing hormones‚ such as the thyroid follicle. The function of glandular
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its transport across bacterial cell membranes is dependent upon the presence of oxygen. Gentamicin works by inhibiting protein synthesis in susceptible bacteria by binding strongly to the bacterial ribosome at the 30S-50S interface and preventing ribosomal activity. It is bacteriocidal‚ meaning it causes bacterial cell death rather than just stopping bacterial growth. | Cholera | Tetracyclinechloramphenicol | Tetracycline:Absorption in GItract.Distribution-Volume of distribution is 1.3 L/kg
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Biochemistry and Molecular Biology‚ University of Miami School of Medicine‚ Miami‚ Florida 2 Department of Physiology and Biophysics and the Neurosciences Program‚ University of Miami School of Medicine‚ Miami‚ Florida 1 Summary In protein and RNA macromolecules‚ only a limited number of different side-chain chemical groups are available to function as catalysts. The myriad of enzyme-catalyzed reactions results from the ability of most of these groups to function either as nucleophilic‚ electrophilic
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healthy bees and bees suffering from CCD. After comparing both types of bees‚ they discovered that the bees with CCD shared quite a few infections containing viruses. The viruses that they have attack the ribosome. Large quantities of fragmented ribosomal RNA are being found in the bees with CCD. The ribosome plays an important role in the survival of any organism. The effect of the missing bees has become wide spread. The British beekeepers lobbied parliament for the efforts of funding research
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Define metabolism: The sum of all biological chemical reactions inside a cell or organism Differences in catabolism and anabolism: Catabolism is an enzyme-regulated chemical reaction that releases energy. Complex organic compounds such as glucose‚ amino acids‚ glycerol and fatty acids are broken down into simpler ones. The energy of catabolic reactions is used to drive the anabolic reactions. Anabolism is also enzyme regulated but requires energy for taking the simpler broken down components
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prokaryotic cell consisting of a concentrated mass of DNA. (The “nucleus” of a prokaryotic cell) The nucleoid instructs all the organelles on what to do. Ribosome: A cell organelle consisting of RNA and protein organized into two subunits and functioning as the site of protein synthesis in the cytoplasm. The ribosomal subunits are constructed in the nucleolus. (Make proteins from amino acids) The nucleoid controls the ribsomes and specifies which proteins to make. Plasma Membrane: The thin layer of lipids
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Biology‚ 7e (Campbell) Chapter 6: A Tour of the Cell Chapter Questions 1) All of the following are part of a prokaryotic cell except A) DNA. B) a cell wall. C) a plasma membrane. D) ribosomes. E) an endoplasmic reticulum. Answer: E Topic: Concept 6.2 Skill: Knowledge 2) The volume enclosed by the plasma membrane of plant cells is often much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that A) plant cells are capable
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